Printing press



June 5, 1923.

R. s. TYLER PRINTING PRESS Filed Jan. 22, 1921.

Patented June 5, 1923.

N i i 59 dies;

RALPH s. 'rrrna, or onnvnrann nuts-Hrs, QHIQ, as'srenon TO THE CHANDLER AND PRICE ooiuranr, or onnvnrann, care, A conroaarrou oroHro.

Pnin'rme PnEss.

' Application filed January 22, 1921. Serial No. 439,083,

To all whom it may concern Be it known that I, RALPH S. TYLER, a citizen of the/United States, and a resident of ClevelandItle-ights, county of Cuyahoga, and State of Ohio, have invented a new and useful Improvement in Printing Presses, of

which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions. I

The present improvements. relating, as indicated, to printing presses,have" more particular regard to platen printing pressesof the familiar Gordon type, in which a pair of inking rolls, which are made of a special, more or less resilient, composition, are mountedin a recipocating carriage, and receive the ink from a suitable fountain or.

like device disposed at the upper limit of such carriages travel. In the course of the downward movement of the carriage the rolls first pass over a disk which assists in distributing the ink uniformly across the same, andthen over the form to which the ink requires to be transferred prior to printing therefrom. Such form is set in a bed, and the'rolls are held so as to contact with such form under proper pressure by means of an integral track on either side of the form with which the exposed metal ends of the rolls engage.

It is found in practice that the composition that forms the body of the roll has atendency to change its diameter, under conditions of use, with the result that after a time the rolls no longer contact with the form under the proper pressure so as to apply the ink in the right amount and evenly thereover. The object of the present invention,

accordingly, is to provide an adjustable track wherewith the rolls may thus engage in passing over the form, the adjustment being of such a character that the contacting pressure of the rolls with the form may be gaged to suit the varying diameter of the rolls either initially or after use.

To the accomplishment of the foregoing and related ends, the invention, then, consists of the means hereinafter fully described and particularly pointed out in theclaims, the annexed drawingand the following descriptioni setting forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but

one of various: mechanical forms in which the principle of the invention may be used.

In said annexed drawing Fig. 1 is a broken side elevationof aGo-rthrough one such track; and 3 is partly a side elevation of the latter and partly a' sectionat right' angles to-tha't of Fig. 2, the" plane of such section being indicated by the" line 33 on said Fig. 2. 7

Of the printing press proper it will be sufiiclent to note the bed" 1 which is the part that holds the form,i and the disk 2 over which the inking device passes in its travel from the fountain (not shown) to vsuch form. Such device comprises essentially a series of compositionrolls 3, 4 and 5,0f .fa-

miliar construction, which are supported at their respective ends by arms 6 and-7 movably mounted in an oscillatory frame. 8', sprlngs (not shown) being provided'in connection with said arms. to retain such'rolls in more or less close contact with the surface 5 has the ends of its spindle 5 directly journaled in arms 7, while the two following rolls 3 and have theends of their spindles 3: and ltjournaled in a saddle 11' that .is plvotallv attached to the outer ends of the corresponding arms 6. T

frames 8, there being of course one such frame on each slde of the bed 1. However,

in passing across the form mounted on the front face of the bed 1. it is desirable,- as

across which they travel. The forward'roll' previously explained, that the degree of I pressureunder which said rolls contact with the printing elements composing the form shouldbe regulated, and tothis end I vprovide in the present. construction separate steel tracks12,one'onleach side of said bed, Y

wherewith the exposeol metal ends of the rolls are adapted to contact, it being understood that these tracks project slightly beyond the face of the form when mounted in the bed so as to make up the difference due to the thickness of the layer of composition material that forms the body of the rolls.

The upper ends 13 of the tracks are angu- Y recess larly related to the main portions thereof so that the rolls may pass readily onto the track as they leave the disk 2.

Particular attention is directed to the means whereby these tracks 12 are secured to the bed i. As shown in detail in Figs. 2 and 3, each such track is provided on its inner edge with two longitudinally spaced slots 14: that are laterally recessed or counterbored on the outwardly directed face of such track to provide a recess 15 adapted to take an eccentric Washer 16 rotatably mounted on a set bolt 17 that passes through suchslot proper, and has three led engagement (see i 2) in the bed 1. Said washer 16 is provieed with a flange 18 that covers over the and is formed with a cylindrical portion having aseries of radial apertures l9 and With a beveled portion having a se- -Willbe observed, is concentric ries of graduations 20. Said flange 18, with the axis or set bolt 17, the head 21 of the latter bear- 'ing on the cylindrical portion of the Washer, -so thatg upon tightening said bolt the flange .-.brought into register, also that such gradu-' the adjacent side face of the track 12. will further be observed that'there 1s a fixed setting marl: or line 22 at a convenientpointo'fthe Washer will be firmly clamped against it on the side face of the track adjacent the flange 18 of the Washer, wherewith the successive graduations on such flange may be ations are numbered consecutively, in order t th t tt' l'h to indicate e amount 0 ro a ion u no.

- may given the Washer for the purpose nou 'to'be set forth. I

in use, assuming the set bolts 17 to have been loosened, the eccentric Washers 16 be rotated by inserting a pin in one of the holes 159, from the zero position shown in desired position, the tracks are then securely held in place by tightening up set bolts 17,

as will be readily understood. By means of the graduations on the beveled flange of the Washers the amountof the adjustment thus secured may be closely figured, such gradu ations being callbrated with respect to the throw of the eccentric body of the WttSllGl proper,

stead of cast iron, as is the case where they vare formed integral withthe bed 1 of the The tracks'bei a made 01 steel inpress, are of course extremely durable and show very little Wear even after long andhard usage; while by mounting them in the fit; ilt

adjustable fashion described, they may be located throughout their length in accurate spaced relation to theztace of the bed or form mounted therein, ,Qll'lg order rte secure pr per contacting pressure of the inking rolls Withgards the mechanism herein disclosed, proyided the means-stated by any of the tol lowing claims or the equivalent of such stated means be-employed.

I therefore particularly point out and distinctly claim as my invention 1.. In a platen printing press, the combination with 'the bed, ink-d1str1but1ng disk and composition rolls adapted toipassmver said bed and disk; of separate steel tracks-la cated one onea-ch side of said bed and adapted to engage the ends of said rolls, each such rtraclr having a plurallty'of transverse slots -formed in its rear edge, such slots being counter-bored to present open recessessubstantially coextensive "therewith; *rbolts threaded inthe bed'and adapted torreceive such slots for securing the tracks to the-lat ter; and washers rotatably mounted on said bolts and having eccentric portions disposed to lie in such recesses and engage-With the inner ends hereof, whereby saiditrack may be adjusted transversely of said bolts by r0- tating said washers, said bolts being adapted to press said Washers against said tracks and thus clamp the same to'the bed in such adjusted position.

2. in a platen printing press, the combination with the bed,inledistributing disk and composition rolls adapted to pass overvs'aid bed and disk; 01 separate steel tracks located one on'eaoh side of said bed and adapted to engage the ends of said rolls, each such track having a plurality of transverse slots formed in its rear edge, such slots-being counter boredto present ope-n recesses substantially coextensive therewith; bolts-threaded in the bed and vadapted to receive such slots torsocnring'the tracks to the latter; and washers rotatably mounted on said bolts and having eccentric portions disposed to lie in such recesses and engage with the inner ends'there- 01", whereby said track may be adjusted transversely of said bolts by 1 "-otatina, said Washers, said -vrashersw being alsoformed with flanges overlying suchrecesses 1 provided u'ithpraduations adapted to indicate the position of said traekand saidbolts benu adapted to p'saidwashers With-their against said 'trac'ksvand thus clamp the same the bed in suclradjusted. position.

Signed by me'this 20th day otJanua-ry, 1921.

i BALE-H315, Times. 

